The meaning of DEFINE is to determine or identify the essential qualities or meaning of. How to use define in a sentence.

DEFINE definition: to state or set forth the meaning of (a word, phrase, etc.). See examples of define used in a sentence.

DEFINE definition: 1. to say what the meaning of something, especially a word, is: 2. to explain and describe the…. Learn more.

1. to state or set forth the meaning of (a word, etc.). 2. to explain or identify the nature or essential qualities of; describe. 3. to specify: to define responsibilities. 4. to determine or fix the boundaries or …

Definition of definition noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Webster's New World College Dictionary Definitions, The American Heritage Dictionary of the English Language, at YourDictionary.com

Jan 14, 2026 · define (third-person singular simple present defines, present participle defining, simple past and past participle defined) To determine with precision; to mark out with distinctness; to …

to determine or fix the boundaries or extent of: to define property with stakes. to make clear the outline or form of: The roof was boldly defined against the sky.

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DEFINE meaning: 1 : to explain the meaning of (a word, phrase, etc.); 2 : to show or describe (someone or something) clearly and completely